SONOFF SNZB-05P is a Zigbee 3.0 water leak sensor with low power consumption and a long 5-year battery life. It features an elevated probe that detects liquid levels as low as 0.5 mm, while the concave collection design enables fast drip sensing. SONOFF water leak detector supports extended detection cable networks with no length limit, and delivers instant app alerts alongside local Zigbee scene-triggered alarms—even if Wi-Fi is down. Acting as a home water leak detector, it is suitable for sink cabinets, sump pumps, laundry rooms, bathrooms, basements, wine cellars, kitchen, attic, water heaters, and more. Compatible with SONOFF NSPanel Pro, iHost, ZB Bridge series, and Home Assistant (via ZHA or Zigbee2MQTT), it provides reliable, scalable water leak protection.
The elevated probe design detects liquid levels as low as 0.5mm and works reliably on metal surfaces without false triggers.
Its concave water collection design quickly senses drips and stops leaks at the source.
Working as a home water leak detector, SNZB-05P will instantly push app notifications to alert you once water is detected, and Zigbee local control scenes can trigger gateway alarms even during WiFi outages.
Compatible with Zigbee 3.0 hubs such as SONOFF NSPanel Pro, SONOFF iHost, ZB Bridge variants (ZB Bridge, ZB Bridge-P, ZB Bridge-U), and SmartThings Hub V3.
Easily integrates with Home Assistant via ZHA or Zigbee2MQTT (requires Zigbee dongle like SONOFF ZBDongle-P or ZBDongle-E) for seamless home automation.